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C90400 Bronze vs. C37700 Brass

Both C90400 bronze and C37700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C90400 bronze and the bottom bar is C37700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 24
40
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 41
39
Tensile Strength: Ultimate (UTS), MPa 310
400
Tensile Strength: Yield (Proof), MPa 180
160

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 990
890
Melting Onset (Solidus), °C 850
880
Specific Heat Capacity, J/kg-K 370
380
Thermal Conductivity, W/m-K 75
120
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
27
Electrical Conductivity: Equal Weight (Specific), % IACS 12
30

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 3.5
2.6
Embodied Energy, MJ/kg 56
45
Embodied Water, L/kg 370
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
130
Resilience: Unit (Modulus of Resilience), kJ/m3 150
120
Stiffness to Weight: Axial, points 7.0
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 10
14
Strength to Weight: Bending, points 12
15
Thermal Diffusivity, mm2/s 23
39
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Copper (Cu), % 86 to 89
58 to 61
Iron (Fe), % 0 to 0.4
0 to 0.3
Lead (Pb), % 0 to 0.090
1.5 to 2.5
Manganese (Mn), % 0 to 0.010
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 7.5 to 8.5
0
Zinc (Zn), % 1.0 to 5.0
35.7 to 40.5
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0
0 to 0.5